Really Appy? I think here you can have a horse pretty much anywhere on anything if your not within the city limits. County rules are a lot more lax I guess. I think here you have to have 1 acre paid for before you can build a house on the land.
As for the barn/loft, its unbelievable how much stuff you can accumulate with horses and just country life in general. I have 2 barns and a garage and they are all put to use. Between hay, tractor and implements, lawn mower, trailers, boat and vehicles they're all full.